Initial Commit

matlab/runtest.m

@@ -0,0 +1,56 @@
+tg = slrt;
+
+%%
+f = SimulinkRealTime.openFTP(tg);
+mget(f, 'apa95ml.dat');
+% remove file on RT-target
+% removefile(f, 'C:\data\data_001.dat')
+close(f);
+
+%% Convert the Data
+data = SimulinkRealTime.utils.getFileScopeData('apa95ml.dat').data;
+
+%%
+figure;
+subplot(1,2,1);
+plot(data(:, 3), data(:, 1))
+subplot(1,2,2);
+plot(data(:, 3), data(:, 2))
+
+%%
+run setup;
+
+win = hann(ceil(0.1/Ts));
+
+[tf_est, f] = tfestimate(data(:, 1), data(:, 2), win, [], [], 1/Ts);
+[co_est, ~] = mscohere(data(:, 1), data(:, 2), win, [], [], 1/Ts);
+
+%%
+  figure;
+
+  hold on;
+  plot(f, co_est, 'k-')
+  set(gca, 'Xscale', 'log'); set(gca, 'Yscale', 'lin');
+  ylabel('Coherence'); xlabel('Frequency [Hz]');
+  hold off;
+
+%%
+  figure;
+  ax1 = subplot(2, 1, 1);
+  hold on;
+  plot(f, abs(tf_est), 'k-', 'DisplayName', 'Identified')
+  set(gca, 'Xscale', 'log'); set(gca, 'Yscale', 'log');
+  ylabel('Amplitude'); xlabel('Frequency [Hz]');
+  legend();
+  hold off;
+
+  ax2 = subplot(2, 1, 2);
+  hold on;
+  plot(f, 180/pi*angle(-tf_est), 'k-')
+  set(gca, 'Xscale', 'log'); set(gca, 'Yscale', 'lin');
+  ylabel('Phase'); xlabel('Frequency [Hz]');
+  legend();
+  hold off;
+  
+  linkaxes([ax1,ax2], 'x');
+  xlim([10, 5000]);

matlab/setup.m

@@ -0,0 +1,6 @@
+s = tf('s');
+Ts = 1e-4;
+
+Glpf = 1/(1 + s/2/pi/500);
+
+Gz = c2d(Glpf, Ts, 'tustin');